CN105927188A - Pneumatic liquid discharge device - Google Patents

Pneumatic liquid discharge device Download PDF

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Publication number
CN105927188A
CN105927188A CN201610506867.3A CN201610506867A CN105927188A CN 105927188 A CN105927188 A CN 105927188A CN 201610506867 A CN201610506867 A CN 201610506867A CN 105927188 A CN105927188 A CN 105927188A
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CN
China
Prior art keywords
valve
pressure air
air passage
antivibrator
drain pump
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610506867.3A
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Chinese (zh)
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CN105927188B (en
Inventor
杨丽欣
张立功
王东坤
程济丰
杨大彬
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Mudanjiang Obei Petroleum Parts Co., Ltd.
Original Assignee
MUDANJING JINYU PETROLEUM ACCESSORIES Co Ltd
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Priority to CN201610506867.3A priority Critical patent/CN105927188B/en
Publication of CN105927188A publication Critical patent/CN105927188A/en
Application granted granted Critical
Publication of CN105927188B publication Critical patent/CN105927188B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00

Abstract

The invention relates to a pneumatic liquid discharge device, which comprises a liquid discharge device body (1), wherein a slurry passage (2) and a pressure air passage (3) are arranged on the liquid discharge device body (1); one end of the pressure air passage (3) is communicated with the middle part of the slurry passage (2); the other end of the pressure air passage (3) is communicated with the outside of the liquid discharge device body (1); a safety valve (4) is arranged in a position, near the slurry passage (2), in the pressure air passage (3); an air inlet connector (5) is arranged on an air inlet of the pressure air passage (3); a one-way slide valve (6) is arranged in a position between the safety valve (4) arranged in the pressure air passage (3) and the air inlet connector (5); a slide valve damper (7) is arranged in the liquid discharge device body(1); a bridge rod (8) is connected between the slide valve damper (7) and the one-way slide valve (6). Through pressure air, slurry in a square drill pipe can be directly pressed into a well, so that no slurry exists in the upwards lifted and dismounted and connected square drill pipe; no slurry is downwards leaked onto a drilling platform; the drilling operation environment is purified.

Description

Pneumatic drain pump
Technical field
The present invention relates to petroleum tool, be specifically related to the pneumatic drain pump of a kind of mud contamination drillng operation environment prevented in kelly bar.
Background technology
At present oil drilling all can use and various prevent from letting out under mud ground instrument to protect drilling environment, but these prevent the instrument let out under mud to be all used to clear up kelly bar outer surface mud, it is impossible to the internal mud of cleaning kelly bar.The mud carried in drill with ferrule rod aperture when dismounting kelly bar mentioned by the single kelly bar of finishing drilling can be let out on drilling platforms down, pollutes drillng operation environment.At present let out the mud on drilling platforms winter can freeze on drilling platforms, make drilling platforms slippery surface, during driller's operation, easily cause accident potential, it is impossible to provide a working environment cleaned to work safely to driller.
Summary of the invention
It is an object of the invention to prevent under mud, letting out instrument can only clear up kelly bar outer surface mud for existing; the mud carried in can not clearing up kelly bar; the defect being unfavorable for protecting drilling environment on drilling platforms is let out, it is provided that a kind of for the mud within kelly bar is pressed onto the down-hole pneumatic drain pump without band upper ground surface under the mud carried in kelly bar.
nullThe technical solution of the present invention is: it includes drain pump body,The slurry channel being connected with drilling mud pipeline when drain pump body is provided with use,Pressure air passage it is additionally provided with on drain pump body,One end of pressure air passage is connected with in the middle part of slurry channel、The other end is connected outside drain pump body,In pressure air passage, the position near slurry channel is provided with the relief valve being arranged on drain pump body,Pressure air passage is provided with inlet suction port with the air inlet being connected outside drain pump body,Position between pressure air passage internal safety valve and inlet suction port is provided with slipper seal and is arranged on the intrinsic unidirectional guiding valve that can import pressure air from inlet suction port to one direction in slurry channel of drain pump,Drain pump is the most internal is provided with guiding valve antivibrator,Guiding valve antivibrator and unidirectional guiding valve are slidably mounted on drain pump with identical glide direction, and this is internal,The bridge bar having for guiding valve antivibrator Yu unidirectional guiding valve synchronous slide it is connected between guiding valve antivibrator with unidirectional guiding valve,It is provided with return spring between guiding valve antivibrator and drain pump body,One end of return spring is pressed on guiding valve antivibrator、The other end is pressed on drain pump body、During for stopping to pressure air passage injection pressure air, guiding valve antivibrator drives unidirectional guiding valve slowly closing pressure air passage.
The solution have the advantages that: the mud that it carries in can clearing up kelly bar make its upper carry kelly bar time will not let out on drilling platforms down, be conducive to protecting drilling environment.Mud in kelly bar is directly pressed onto down-hole by pressure air by it, makes to carry the kelly bar disassembled and connect interior without mud, does not the most just have under mud to let out on drilling platforms, purified drillng operation environment.It belongs to a kind of Novel platform cleaning product, and it is connected between rotary hose and body, instead of conventional mud saver valve completely and connects the instrument let out under all anti-mud on drilling rod, couple together more convenient, using method is simpler, and using effect is more preferable, should be widely promoted and apply.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention sectional view.
Detailed description of the invention
nullAs shown in Figure 1,It includes drain pump body 1,The slurry channel 2 being connected with drilling mud pipeline when drain pump body 1 is provided with use,Pressure air passage 3 it is additionally provided with on drain pump body 1,One end of pressure air passage 3 is connected in the middle part of slurry channel 2、The other end is connected outside drain pump body 1,In pressure air passage 3, the position near slurry channel 2 is provided with the relief valve 4 being arranged on drain pump body 1,Pressure air passage 3 is provided with inlet suction port 5 with the air inlet being connected outside drain pump body 1,Position between pressure air passage 3 internal safety valve 4 and inlet suction port 5 is provided with the unidirectional guiding valve 6 that can import pressure air from inlet suction port 5 to one direction in slurry channel 2 that slipper seal is arranged in drain pump body 1,Guiding valve antivibrator 7 it is provided with in drain pump body 1,Guiding valve antivibrator 7 and unidirectional guiding valve 6 are slidably mounted in drain pump body 1 with identical glide direction,The bridge bar 8 having for guiding valve antivibrator 7 with unidirectional guiding valve 6 synchronous slide it is connected between guiding valve antivibrator 7 with unidirectional guiding valve 6,Return spring 71 it is provided with between guiding valve antivibrator 7 and drain pump body 1,One end of return spring 71 is pressed on guiding valve antivibrator 7、The other end is pressed on drain pump body 1、During for stopping to pressure air passage 3 injection pressure air, guiding valve antivibrator 7 drives unidirectional guiding valve 6 slowly closing pressure air passage 3.
nullDrain pump body 1 is by main body 11、Upper valve body 12 and cap body 13 are constituted,Slurry channel 2 is the straight hole being located in main body 11,In main body 11, one end of slurry channel 2 is provided with and has interior spherical port 14 and the male joint 16 of outer connection screw thread 15、The other end is provided with has outer spherical 17 and outer cover equipped with the female joint 19 connecting screw thread loose joint 18 in band,Pressure air passage 3 in main body 11 is connected along the radial direction of slurry channel 2 with slurry channel 2,Relief valve 4 is located in the pressure air passage 3 in main body 11,Upper valve body 12 is threadedly attached in the pressure air passage 3 that main body 12 is provided with on the position of pressure air passage 3 import and upper valve body 12 and is connected with the pressure air passage 3 in main body 11,Unidirectional guiding valve 6 is arranged in the pressure air passage 3 of upper valve body 12,Guiding valve antivibrator 7 is slidably mounted in the antivibrator hole 20 on upper valve body 12,The pressure air passage 3 that cap body 13 is arranged in pressure air passage 3 entrance location of upper valve body 12 and cap body 13 by bolt 9 is connected with the pressure air passage 3 on upper valve body 12,Inlet suction port 5 is by pressure air passage 3 air inlet that is threadably mounted in cap body 13.
In main body 11 male joint 16, the interior spherical of spherical port is provided with one seal groove, and loose joint 18 is provided with the interior spherical matched with female joint 19 outer spherical head.Main body 11 by screw thread be connected position with upper valve body 12 outside main body 11 outer wall be provided with together with seal groove, the sealing ring coordinated with the sealing of upper valve body 12 phase is installed in seal groove.
nullRelief valve 4 is by stage clip 41、Lower ball base 42、Spherical valve core 43、Operated key 44、Under shed ring washer 45、Upper ball base 46、Support ring 47、Upper shed back-up ring 48 and jump ring 10 are constituted,Stage clip 41、Lower ball base 42、Spherical valve core 43、Upper ball base 46 and upper shed back-up ring 48 are sequentially installed in pressure air passage 3 on the main body 11 to the other end from the one end near slurry channel 2 successively,Stage clip 41 is pressed on the inner face of pressure air passage 3 near one end of slurry channel 2,Lower ball base 42 is arranged in pressure air passage 3 along sliding axially of pressure air passage 3,One end of lower ball base 42 is pressed on stage clip 41 and matches with stage clip 41、The other end is pressed on spherical valve core 43 and matches with spherical valve core 43,The wall portion of spherical valve core 43 position is installed in main body 11 and is provided with the operated key installing hole that main body 11 pressure air passage 3 and main body 11 are connected externally to lead to,Operated key 44 is rotatably installed in operated key installing hole,On operated key 44, the one end towards spherical valve core 43 is provided with the dop matched for controlling spherical valve core 43 rotation with spherical valve core 43,Spherical valve core 43 is provided with the draw-in groove matched with the dop on operated key 44,Under shed ring washer 45 is sleeved on upper ball base 42 lower end outer wall、Outer wall side is arranged in the under shed circlip groove on pressure air passage 3 inwall,The outward flange of upper shed back-up ring 45 bottom is arranged in the upper shed circlip groove on pressure air passage 3 inwall,Support ring 47 is sleeved in upper shed back-up ring 48 in one end of upper ball base 46,Jump ring 10 is positioned at the offside of lower ball base 42 and is arranged on the jump-ring slot on upper shed back-up ring 48 inwall.
The outer wall of lower ball base 42 is provided with two seals ring recess, it is provided with in seal groove and seals, with pressure air passage 3 phase, the sealing ring coordinated, the outer wall of operated key 44 is provided with two seals ring recess, it is provided with in seal groove and seals, with operated key installing hole, the sealing ring coordinated mutually, the outer wall of upper ball base 46 is provided with two seals ring recess, is provided with and seals, with pressure air passage 3 phase, the sealing ring coordinated in seal groove.
nullUnidirectional guiding valve 6 is by stop collar 61、Valve rod 62、Upper pressing cap 63 and valve seat 64 are constituted,Valve seat 64 and upper pressing cap 63 are arranged in the pressure air passage 3 of upper valve body 12 to the other end from the one end near main body 11 successively,The valve seat 64 inner face near one end of main body 11 with pressure air passage 3 matches,Upper pressing cap 63 is arranged on the female thread in the pressure air passage 3 of upper valve body 12 for being fastened in upper valve body 12 by valve seat 64 by external screw thread,The stem head of valve rod 62 is positioned at the side of main body 11、One end of the valve rod body of rod sequentially passes through valve seat 64 and upper pressing cap 63 from the direction of valve seat 64 upwards pressure cap 63,Upper pressing cap 63 is provided with and valve rod 62 body of rod is slidably matched centre bore and the gas port 65 at several connection upper pressing cap 63 two ends outside centre bore and between upper pressing cap 63 outer wall,Stop collar 61 is sleeved on valve rod 62 and passes on valve rod 62 body of rod of upper pressing cap 63,Match with the outer face on valve rod 62 body of rod in one end of stop collar 61、The other end matches with bridge bar 8.The outer wall of valve seat 64 is provided with two seals ring recess, is provided with pressure air passage 3 phase with upper valve body 12 and seals the sealing ring coordinated in seal groove, and valve rod 62 seals, with valve seat 64 phase, the position coordinated and is provided with seal groove, is provided with sealing ring in seal groove.
nullGuiding valve antivibrator 7 is by return spring 71、Return valve 72、Return sealing shroud 73 and jump ring 10 are constituted,Return spring 71、Return valve 72 and return sealing shroud 73 are respectively in the antivibrator hole 20 that the one end near main body 11 is arranged on upper valve body 12 to the other end,One end face of return spring 71 matches with upper valve body 12 antivibrator hole 20 inner face、The other end matches with the inner face of return valve 72,Return valve 72 is along the antivibrator hole 20 being sealingly mounted at upper valve body 12 that slides axially in antivibrator hole 20,It is communicated with return valve 72 and antivibrator hole 20 on return valve 72 to be slidingly fitted the damping hole 74 of antivibrator hole 20 inner chamber of both sides, position,Be slidingly fitted antivibrator hole 20, the bridge bar 8 side intracavity of position of return valve 72 and antivibrator hole 20 is provided with the sealing ring 75 driving unidirectional guiding valve 6 seating velocity for postponing return valve 72 being enclosed within outside return valve 72 valve rod,Return valve 72 valve rod and the outer wall of sealing ring 75 mated position are that bridge bar 8 side is thin、The male-tapered that return spring 71 side is thick,Return sealing shroud 73 is positioned at the other end of return spring 71、Inwall slipper seal is sleeved on the valve rod of return valve 72、Outer wall seals mutually with the inwall in antivibrator hole 20 and coordinates,The return sealing shroud 73 end face outside near main body 11 one end matches with the inner face on antivibrator hole 20,Jump ring 10 is mounted remotely from the jump-ring slot on antivibrator hole 20 inwall of main body 11 side Nei and matches with return sealing shroud 73、For return sealing shroud 73 is fixed on upper valve body 12.
The outer wall of return sealing shroud 73 is provided with one seal groove, is provided with and seals, with antivibrator hole 20 phase, the sealing ring coordinated in seal groove.
Bridge bar 8 be respectively arranged at two ends with parallel valve rod hole and return valve valve rod hole, valve rod hole and return valve valve rod hole on bridge bar 8 are set on valve rod 62 body of rod and return valve 72 valve rod, and the end of valve rod 62 body of rod and return valve 72 valve rod is respectively equipped with external screw thread and is provided with the nut for being fastened on by bridge bar 8 on valve rod 62 body of rod and on return valve 72 valve rod by screw thread respectively.
Use principle: in main body 1, male joint 16 and the female joint 19 at slurry channel 2 two ends are connected between rotary hose and drill pipe body, inlet suction port 5 connects rig air pumping plant, finishing drilling single drill pipe opens gas valve while mentioning kelly bar, opens unidirectional guiding valve 6, mud is pressed onto in well.The most unidirectional guiding valve 6 drives return valve 72 action compresses return spring 71 by bridge bar 8.When closing gas valve, return valve 72 under return spring 71 drives and damping hole 74, sealing ring 75 effect under drive unidirectional guiding valve 6 slowly closing by bridge bar 8, the pressed gas in kelly bar is made to discharge, make kelly bar interior without mud no pressure, do not have exhaust sound when opening kelly bar, operator will not be produced psychological impact.Relief valve 4 can maintenance and during well kick by its manual-lock, be conducive to being normally carried out of operation safety and maintenance work.

Claims (10)

  1. nullThe most pneumatic drain pump,It includes drain pump body (1),It is characterized in that: the slurry channel (2) being connected with drilling mud pipeline when drain pump body (1) is provided with use,Pressure air passage (3) it is additionally provided with on drain pump body (1),One end of pressure air passage (3) is connected with slurry channel (2) middle part、The other end is connected outside drain pump body (1),In pressure air passage (3), the position near slurry channel (2) is provided with the relief valve (4) being arranged on drain pump body (1),Pressure air passage (3) is provided with inlet suction port (5) with the air inlet being connected outside drain pump body (1),Position between pressure air passage (3) internal safety valve (4) and inlet suction port (5) is provided with the unidirectional guiding valve (6) that can import pressure air from inlet suction port (5) to one direction in slurry channel (2) that slipper seal is arranged in drain pump body (1),Guiding valve antivibrator (7) it is provided with in drain pump body (1),Guiding valve antivibrator (7) is slidably mounted in drain pump body (1) with identical glide direction with unidirectional guiding valve (6),The bridge bar (8) having for guiding valve antivibrator (7) Yu unidirectional guiding valve (6) synchronous slide it is connected between guiding valve antivibrator (7) with unidirectional guiding valve (6),Return spring (71) it is provided with between guiding valve antivibrator (7) and drain pump body (1),One end of return spring (71) is pressed on guiding valve antivibrator (7)、The other end is pressed on drain pump body (1)、During for stopping to pressure air passage (3) injection pressure air, guiding valve antivibrator (7) drives unidirectional guiding valve (6) slowly closing pressure air passage (3).
  2. Pneumatic drain pump the most as claimed in claim 1, nullIt is characterized in that described drain pump body (1) is by main body (11)、Upper valve body (12) and cap body (13) are constituted,Slurry channel (2) is for be located at the straight hole in main body (11),One end of the upper slurry channel (2) of main body (11) is provided with the male joint (16) with interior spherical port (14) and outer connection screw thread (15)、The other end is provided with has outer spherical head (17) and outer cover equipped with the female joint (19) connecting screw thread loose joint (18) in band,Pressure air passage (3) in main body (11) is connected along the radial direction of slurry channel (2) with slurry channel (2),Relief valve (4) is located at the pressure air passage (3) in main body (11) Nei,Upper valve body (12) is threadedly attached in the pressure air passage (3) that main body (12) is provided with on the position of pressure air passage (3) import and upper valve body (12) and is connected with the pressure air passage (3) in main body (11),Unidirectional guiding valve (6) is arranged in the pressure air passage (3) of upper valve body (12),Guiding valve antivibrator (7) is slidably mounted in the antivibrator hole (20) on upper valve body (12) Nei,The pressure air passage (3) that cap body (13) is arranged in pressure air passage (3) entrance location of upper valve body (12) and cap body (13) by bolt (9) is connected with the pressure air passage (3) on upper valve body (12),Inlet suction port (5) is by being threadably mounted on pressure air passage (3) air inlet in cap body (13).
  3. Pneumatic drain pump the most as claimed in claim 2, It is characterized in that the interior spherical of described main body (11) male joint (16) interior spherical port is provided with one seal groove, loose joint (18) is provided with the interior spherical matched with female joint (19) outer spherical head.
  4. Pneumatic drain pump the most as claimed in claim 2, It is characterized in that described main body (11) by screw thread be connected position with upper valve body (12) outside main body (11) outer wall be provided with together with seal groove, be provided with in seal groove and seal, with upper valve body (12), the sealing ring coordinated mutually.
  5. Pneumatic drain pump the most as claimed in claim 2, nullIt is characterized in that described relief valve (4) is by stage clip (41)、Lower ball base (42)、Spherical valve core (43)、Operated key (44)、Under shed ring washer (45)、Upper ball base (46)、Support ring (47)、Upper shed back-up ring (48) and jump ring (10) are constituted,Stage clip (41)、Lower ball base (42)、Spherical valve core (43)、Upper ball base (46) and upper shed back-up ring (48) are successively in the pressure air passage (3) that the one end near slurry channel (2) is sequentially arranged on main body (11) to the other end,Stage clip (41) is pressed on the inner face of pressure air passage (3) near one end of slurry channel (2),Lower ball base (42) is arranged in pressure air passage (3) along sliding axially of pressure air passage (3),One end of lower ball base (42) is pressed in stage clip (41) and above matches with stage clip (41)、The other end is pressed in spherical valve core (43) and above matches with spherical valve core (43),The wall portion of spherical valve core (43) position is installed in main body (11) and is provided with the operated key installing hole that main body (11) pressure air passage (3) and main body (11) are connected externally to lead to,Operated key (44) is rotatably installed in operated key installing hole,On operated key (44), one end towards spherical valve core (43) is provided with and matches for controlling the dop that spherical valve core (43) rotates with spherical valve core (43),Spherical valve core (43) is provided with the draw-in groove matched with the dop on operated key (44),Under shed ring washer (45) is sleeved on upper ball base (42) lower end outer wall、Outer wall side is arranged in the under shed circlip groove on pressure air passage (3) inwall,The outward flange of upper shed back-up ring (45) bottom is arranged in the upper shed circlip groove on pressure air passage (3) inwall,Support ring (47) is sleeved in upper shed back-up ring (48) in one end of upper ball base (46),Jump ring (10) is positioned at the offside of lower ball base (42) and is arranged on the jump-ring slot on upper shed back-up ring (48) inwall.
  6. Pneumatic drain pump the most as claimed in claim 5, It is characterized in that the outer wall of described lower ball base (42) is provided with two seals ring recess, it is provided with in seal groove and seals, with pressure air passage (3), the sealing ring coordinated mutually, the outer wall of operated key (44) is provided with two seals ring recess, it is provided with in seal groove and seals, with operated key installing hole, the sealing ring coordinated mutually, the outer wall of upper ball base (46) is provided with two seals ring recess, is provided with and seals, with pressure air passage (3), the sealing ring coordinated mutually in seal groove.
  7. Pneumatic drain pump the most as claimed in claim 2, nullIt is characterized in that described unidirectional guiding valve (6) is by stop collar (61)、Valve rod (62)、Upper pressing cap (63) and valve seat (64) are constituted,Valve seat (64) and upper pressing cap (63) are arranged in the pressure air passage (3) of upper valve body (12) to the other end from the one end near main body (11) successively,Valve seat (64) matches with the inner face of pressure air passage (3) near one end of main body (11),Upper pressing cap (63) is arranged on the female thread in the pressure air passage (3) of upper valve body (12) in valve seat (64) is fastened on upper valve body (12) by external screw thread,The stem head of valve rod (62) is positioned at the side of main body (11)、One end of the valve rod body of rod sequentially passes through valve seat (64) and upper pressing cap (63) from the direction of valve seat (64) upwards pressure cap (63),Upper pressing cap (63) is provided with and valve rod (62) body of rod is slidably matched centre bore and several are positioned at outside centre bore and the gas port (65) at connection upper pressing cap (63) two ends between upper pressing cap (63) outer wall,Stop collar (61) is sleeved on valve rod (62) and passes on valve rod (62) body of rod of upper pressing cap (63),Match with the outer face on valve rod (62) body of rod in one end of stop collar (61)、The other end matches with bridge bar (8).
  8. Pneumatic drain pump the most as claimed in claim 7, It is characterized in that the outer wall of described valve seat (64) is provided with two seals ring recess, pressure air passage (3) with upper valve body (12) is installed in seal groove and seals the sealing ring coordinated mutually, valve rod (62) seals, with valve seat (64), the position coordinated mutually and is provided with seal groove, is provided with sealing ring in seal groove.
  9. Pneumatic drain pump the most as claimed in claim 2, nullIt is characterized in that described guiding valve antivibrator (7) is by return spring (71)、Return valve (72)、Return sealing shroud (73) and jump ring (10) are constituted,Return spring (71)、Return valve (72) and return sealing shroud (73) are respectively in the antivibrator hole (20) that the one end near main body (11) is arranged on upper valve body (12) to the other end,One end face of return spring (71) matches with upper valve body (12) antivibrator hole (20) inner face、The other end matches with the inner face of return valve (72),Return valve (72) is along the antivibrator hole (20) being sealingly mounted at upper valve body (12) that slides axially of antivibrator hole (20),It is communicated with return valve (72) and antivibrator hole (20) on return valve (72) to be slidingly fitted the damping hole (74) of antivibrator hole (20) inner chamber of both sides, position,Be slidingly fitted bridge bar (8) side antivibrator hole (20) intracavity of position of return valve (72) and antivibrator hole (20) is provided with and is enclosed within being used for outside return valve (72) valve rod and postpones return valve (72) and drive the sealing ring (75) of unidirectional guiding valve (6) seating velocity,Return valve (72) valve rod and the outer wall of sealing ring (75) mated position are that bridge bar (8) side is thin、The male-tapered that return spring (71) side is thick,Return sealing shroud (73) is positioned at the other end of return spring (71)、Inwall slipper seal is sleeved on the valve rod of return valve (72)、Outer wall seals mutually with the inwall of antivibrator hole (20) and coordinates,The return sealing shroud (73) end face outside near main body (11) one end matches with the inner face on antivibrator hole (20),Jump ring (10) is mounted remotely from the jump-ring slot on antivibrator hole (20) inwall of main body (11) side Nei and matches with return sealing shroud (73)、For return sealing shroud (73) is fixed on upper valve body (12).
  10. Pneumatic drain pump the most as claimed in claim 9, It is characterized in that the outer wall of described return sealing shroud (73) is provided with one seal groove, be provided with in seal groove and seal, with antivibrator hole (20), the sealing ring coordinated mutually.
CN201610506867.3A 2016-07-01 2016-07-01 Pneumatic drain pump Active CN105927188B (en)

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Application Number Priority Date Filing Date Title
CN201610506867.3A CN105927188B (en) 2016-07-01 2016-07-01 Pneumatic drain pump

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Application Number Priority Date Filing Date Title
CN201610506867.3A CN105927188B (en) 2016-07-01 2016-07-01 Pneumatic drain pump

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CN105927188B CN105927188B (en) 2018-05-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109723412A (en) * 2018-12-21 2019-05-07 大庆市晟威机械制造有限公司 Injection allocation device

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Publication number Priority date Publication date Assignee Title
US5553678A (en) * 1991-08-30 1996-09-10 Camco International Inc. Modulated bias units for steerable rotary drilling systems
CN2791240Y (en) * 2004-11-24 2006-06-28 董洪生 Square drill-pipe mud pump
CN2874013Y (en) * 2005-11-23 2007-02-28 中国石化集团中原石油勘探局钻井工程技术研究院 Anti-splash valve of kelly
CN204327052U (en) * 2014-11-11 2015-05-13 沈阳大华测控技术有限公司 Negative-pressure liquid discharge device
CN105156040A (en) * 2015-07-23 2015-12-16 中国石油天然气集团公司 Splash-proof joint of square drill rod
CN205805513U (en) * 2016-07-01 2016-12-14 牡丹江金宇石油配件有限公司 Pneumatic drain pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553678A (en) * 1991-08-30 1996-09-10 Camco International Inc. Modulated bias units for steerable rotary drilling systems
CN2791240Y (en) * 2004-11-24 2006-06-28 董洪生 Square drill-pipe mud pump
CN2874013Y (en) * 2005-11-23 2007-02-28 中国石化集团中原石油勘探局钻井工程技术研究院 Anti-splash valve of kelly
CN204327052U (en) * 2014-11-11 2015-05-13 沈阳大华测控技术有限公司 Negative-pressure liquid discharge device
CN105156040A (en) * 2015-07-23 2015-12-16 中国石油天然气集团公司 Splash-proof joint of square drill rod
CN205805513U (en) * 2016-07-01 2016-12-14 牡丹江金宇石油配件有限公司 Pneumatic drain pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109723412A (en) * 2018-12-21 2019-05-07 大庆市晟威机械制造有限公司 Injection allocation device
CN109723412B (en) * 2018-12-21 2019-08-09 大庆市晟威机械制造有限公司 Injection allocation device

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